the first technology of its kind... mom and dad, i have great news. is now providing answers families need. siemens. answers. >> we are monitoring three big breaking news stories. the first photos of the remains of one of the bombs that exploded in boston yesterday has been revealed. and another image emerged that could shed light on the second blast. one on the left shows a bag alongside a barricade and the one on the right is from moments later when a blast occurred in virtually the same spot. we can't confirm this was the actual second bomb, but the photo was sent to the fbi earlier this evening. the third story we are monitoring at this hour is a letter which was sent to the office of senator rodger wicker, a republican that mississippi, that tested positive for rice in. ricin. with me is mark furman, former l.a. pd investigator. we can't say it is connected but it is suspect. >> i think mayor giuliani i think is very correct in saying coincidence is not something that you believe in in this situation so they are going to act as if it is connected